my mom was on xeloda for 2 weeks. since then, she has been hospitalized for 3 weeks and 4 days. she has a body surface area of around 1.49 and was started at 4000mg daily. of the 9 listed side effects, she has had 8 of them.
when the company my parents go through for their prescription medications contacted her doctor to verify such a high dosage, no one from his office returned the call, so subsequent refills (which she wouldn't have used) were never sent.
i hope your father has much better luck with the xeloda than my mother has.